Can cataract be prevented?

J J Harding1

  • 1Nuffield Laboratory of Ophthalmology, University of Oxford, UK.

Eye (London, England)
|January 11, 2000
PubMed

Insights

Preventing cataracts through risk factor elimination is challenging globally. However, non-steroidal anti-inflammatory drugs show promise in preventing cataracts, warranting further clinical trials.

Area of Science:

  • Ophthalmology
  • Pharmacology
  • Preventive Medicine

Background:

  • Cataract prevention strategies include risk factor elimination and anti-cataract therapies.
  • Major risk factor elimination presents challenges, particularly in Western countries, but holds potential in developing nations.
  • Past drug therapy approaches, including aldose reductase inhibitors, faced significant hurdles like toxicity and invalidated hypotheses.

Purpose of the Study:

  • To review the feasibility of cataract prevention via risk factor modification and anti-cataract drug therapy.
  • To assess the efficacy and challenges associated with various anti-cataract therapeutic approaches.
  • To highlight promising new avenues for cataract prevention, including non-steroidal anti-inflammatory drugs.

Main Methods:

  • Review of existing literature on cataract prevention strategies.
  • Analysis of the development and outcomes of aldose reductase inhibitors.
  • Examination of in vitro, animal model, and human association studies for non-steroidal anti-inflammatory drugs.

Main Results:

  • Eliminating major cataract risk factors is difficult in Western countries but feasible in developing regions.
  • Aldose reductase inhibitors faced toxicity issues and their initial hypothesis was disproven.
  • Non-steroidal anti-inflammatory drugs (aspirin, paracetamol, ibuprofen) demonstrated positive in vitro results, prevented diabetic cataract in rats, and showed a protective association in human patients.

Conclusions:

  • While risk factor elimination has limitations, drug therapies offer potential for cataract prevention.
  • Non-steroidal anti-inflammatory drugs show significant promise and require further investigation through clinical trials.
  • Continued research into novel anti-cataract agents is essential for advancing prevention strategies.

Related Concept Videos

Cancer Prevention02:59

Cancer Prevention

Several factors can increase the risk of cancer in an individual. About 50% of cancer cases can be prevented by adopting a healthy lifestyle, regular exercise, eating healthy, and following a modest cancer prevention diet. Epidemiological studies have consistently shown that populations with vegetable and fruit-rich diets have reduced the incidence of cancer. On the other hand, populations who have a diet rich in animal fat, red meat, junk food, or high calories are predisposed to cancer.
Some...
Glaucoma: Overview01:25

Glaucoma: Overview

Glaucoma is an eye condition characterized by increased intraocular pressure that damages the retina and optic nerve, leading to irreversible blindness if left untreated. The human eye has various components, including the cornea, iris, pupil, lens, and optic nerve. Aqueous humor is secreted by the epithelium of the ciliary body in the posterior chamber and flows through the trabecular meshwork and canal of Schlemm, maintaining normal intraocular pressure. The trabecular meshwork and the canal...
Open Angle Glaucoma: Treatment01:27

Open Angle Glaucoma: Treatment

In open-angle glaucoma, the iridocorneal angle remains open, but the trabecular meshwork becomes stiff, slowing down the outflow of aqueous humor. This causes a buildup of aqueous humor in the anterior chamber, leading to a sudden increase in intraocular pressure. The treatment for open-angle glaucoma focuses on reducing the elevated intraocular pressure by either decreasing the secretion of aqueous humor or increasing its outflow.
Drugs such as carbonic anhydrase inhibitors, α2- and...
Angle Closure Glaucoma: Treatment01:28

Angle Closure Glaucoma: Treatment

Angle-closure glaucoma, or closed-angle glaucoma, is an eye condition where the iris bulges out and blocks the iridocorneal angle, resulting in a buildup of aqueous humor and increased intraocular pressure. Immediate medical attention is necessary due to the sudden onset of symptoms. The treatment for angle-closure glaucoma includes short-term and long-term approaches. Short-term treatment involves using eye drops like pilocarpine to lower intraocular pressure by increasing aqueous humor...
Photoreceptors and Visual Pathways01:22

Photoreceptors and Visual Pathways

At the molecular level, visual signals trigger transformations in photopigment molecules, resulting in changes in the photoreceptor cell's membrane potential. The photon's energy level is denoted by its wavelength, with each specific wavelength of visible light associated with a distinct color. The spectral range of visible light, classified as electromagnetic radiation, spans from 380 to 720 nm. Electromagnetic radiation wavelengths exceeding 720 nm fall under the infrared category, whereas...
Coronary Artery Disease IV: Preventive Measures01:26

Coronary Artery Disease IV: Preventive Measures

Effective preventive measures for coronary artery disease (CAD) focus on controlling modifiable risk factors, including cholesterol abnormalities and lifestyle changes.Cholesterol ManagementFirst, the Mediterranean diet and the American Heart Association advocate for maintaining low-density lipoprotein (LDL) cholesterol levels below 100 mg/dL, with a more stringent recommendation of below 70 mg/dL for individuals at high risk. LDL cholesterol, often termed "bad cholesterol," can lead to the...